4212788836 has 81 divisors (see below), whose sum is σ = 8286692281. Its totient is φ = 1873446784.

The previous prime is 4212788831. The next prime is 4212788863. The reversal of 4212788836 is 6388872124.

The square root of 4212788836 is 64906.

It is a perfect power (a square), and thus also a powerful number.

4212788836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3279852900 + 932935936 = 57270^2 + 30544^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4212788836.

It is not an unprimeable number, because it can be changed into a prime (4212788831) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 50756451 + ... + 50756533.

Almost surely, 2^4212788836 is an apocalyptic number.

4212788836 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4212788836 is the 64906-th square number.

It is an amenable number.

4212788836 is a deficient number, since it is larger than the sum of its proper divisors (4073903445).

4212788836 is a wasteful number, since it uses less digits than its factorization.

4212788836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 125 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The cubic root of 4212788836 is about 1615.0645957543.

Multiplying 4212788836 by its sum of digits (49), we get a square (206426652964 = 454342²).

The spelling of 4212788836 in words is "four billion, two hundred twelve million, seven hundred eighty-eight thousand, eight hundred thirty-six".